Sunday, February 7, 2021

Corona Daily 189: Virus Politics


Ayatollah Ali Khamenei, Iran’s supreme leader, addressed the nation on television on 8 January. He said the vaccines from United States and United Kingdom were forbidden in Iran. “They are completely untrustworthy. It’s not unlikely they would want to contaminate other nations.” He tweeted

The Red Crescent Society is a humanitarian organization in Iran. US based Iranian scientists were planning to send 150,000 doses of Pfizer vaccine to Iran. That shipment was cancelled following Ayatollah Khamenei’s comments.

Minoo Mohraz, an epidemiologist who heads Iran’s coronavirus task force, announced the Ministry of Health would import the AstraZeneca vaccine from Sweden. Since 1999, Astra (Sweden) and Zeneca (UK) merged to form a multinational company with headquarters in the UK. Minoo Mohraz emphasized this was a Swedish company, and omitted all references to Oxford to bypass Khamenei’s ban.

In late January, Iran approved the Russian vaccine, Sputnik V. Its first doses are expected to arrive next week. China has also promised to deliver one million doses to Iran.

Iran has had nearly 1.5 million cases, and 59,000 deaths.

*****

While Iran approved the Russian vaccine, the Ukrainian parliament approved a bill that officially banned any vaccines made in Russia.

Ukraine is the largest country in Europe with 42 million people, and no covid vaccines. It has had 1.25 million cases, and 24,000 deaths. Ukraine’s talks with the USA collapsed when the Trump administration banned vaccine exports. Ukraine’s leaders, who would prefer to literally die before accepting help from Russia, turned to China. In hurried negotiations with China, 1.9 million doses have been promised by Sinovac Biotech, the Chinese supplier. They may arrive this month.

“Russia, as always, uses this in its hybrid war, as an information weapon.” Said Ukraine’s health minister. “One political force just created some hysteria over the registration of the Russian vaccine. I can say at once: You can be hysterical for a very long time, no one will register the Russian vaccine in Ukraine.”

“It’s in Russia’s political interest that Ukraine receive the vaccines from elsewhere as late as possible,” said another minister. “We cannot rely on a Russian state company during an armed aggression against Ukraine” said the government’s medical director. “It’s so politicized it can’t be used.”

*****

In January, Taiwan once again confirmed that any vaccines made in China were banned from import. Taiwan’s Mainland Affairs council said vaccination was a medical matter and that it “should not be used as political propaganda”. This announcement was made after China offered to vaccinate the 400,000 Taiwanese citizens who live in China.

Taiwan’s government find the vaccines made by the Chinese companies Sinovac and Sinopharm suspect. Any Taiwanese who has received the Chinese vaccines is required to quarantine for fourteen days upon arrival in Taiwan. “There are political concerns, but there are also big concerns about the safety and effectiveness of China-made vaccines.” Its official said.

Having refused the Chinese vaccines, Taiwan currently has no vaccines. It has placed orders with Astra-Zeneca and the Covax, the global initiative. The stocks are expected to arrive in March.

*****

India, in January, supplied most of its neighbours free doses as a friendship gesture. Bhutan (150,000 doses), the Maldives (100,000), Bangladesh (2 million), Nepal (1 million), Myanmar (1.5 million), Mauritius (100,000) and Seychelles (50,000) received the grant. Pakistan with 550,000 cases and 12,000 deaths till today hasn’t ordered nor granted any vaccines from India.

China has donated 500,000 doses to Pakistan, they will be given to the health workers next week. Pakistani regulators have approved Sinopharm (China), Sputnik V (Russia) and Oxford (UK).

Strangely, 90% of all vaccines (non-covid) administered in Pakistan come from India. Pakistan’s pharma annual imports from India exceed $70 million. 70% of the active ingredients in medicines sold in Pakistan are imported from India. But Covid Vaccines are newsworthy.

Covid Vaccines are an instrument to make new friendships and to emphasize old enmities.

Ravi 

Saturday, February 6, 2021

Corona Daily 190: On Efficacy and Herd Immunity


In my research, I increasingly come across the words “efficacy” and the more awkward “efficacious”. When newspapers say the Pfizer-BioNTech vaccine has a 95 percent efficacy, why don’t they say it is 95% effective? Because in the pharma and medical world, the two terms are technically different. 

Efficacy is the number we get from a clinical trial, in research settings. Though the trials had tens of thousands of volunteers who lived lives as they normally do, it wasn’t the “real world” test of the vaccine.

Effectiveness is what happens in the real world.

In many other fields of life, we know there may be a difference between the controlled setting and the real world. In cricket, batting in the nets, and playing in a real match in front of crowds. Between rehearsals and on-stage theatrical performances. Projections in the corporate board rooms, and actual company performance.

As we already know, some pregnant women are opting to take the vaccines. They were not included in any trials. Also, the racial and ethnic composition of the trials didn’t exactly represent the populations where trials were conducted.

As a rule, the effectiveness of the vaccines will be lower than the efficacy. The coming years would show how effective Moderna, Pfizer or Oxford were. Neither the efficacy nor the effectiveness can accurately tell you your personal risk. It depends on your immune system, health conditions, and exposure to the virus. At this stage in the pandemic, experts are urging people not to focus on the efficacy numbers, but just go ahead and take whichever authorized vaccine that is offered.

*****

Herd immunity is another popular expression few people had heard before the pandemic. When a significant percentage of the population is vaccinated, or has recovered naturally, it is difficult for the virus to spread. Think of an unsuspecting village, in which a burglar goes from house to house robbing households. In the beginning, he can enter any house of his choice and take cash and jewelry. Over time, he can’t enter houses which are well locked (vaccines) and houses he has already broken into (antibodies). Finally, unable to penetrate an unburgled house, he leaves the village or dies. I imagine the virus to be like that burglar.

Depending on the virus, there is a certain % that needs to achieve immunity before herd immunity is reached. That % is called the “herd immunity threshold”. Measles, a particularly contagious disease, slows down only after 95% of people become immune. Herd immunity doesn’t protect against all vaccine-preventable diseases. Tetanus, for example, is caught from bacteria in the environment, rather than from other people. No matter what percentage of population is vaccinated for tetanus, it doesn’t protect an unvaccinated person; for tetanus herd immunity is not possible.

Herd immunity is important for people with low or compromised immunity, people with HIV, newborn babies too young for a vaccine, elderly or very ill people who can’t safely get vaccinated.

Currently, India is doing very well, with low numbers of cases and deaths, and except for mask-wearing, life is returning to normal. In Delhi, a recent survey suggested more than half of Delhi’s population had antibodies. Many Indians attribute India’s current well-being to the presumed herd immunity. I would like to wait till the monsoon season is over to pass that judgement. June to September is India’s annual infection season, just like winter is Europe’s and America’s. In my view, if India’s numbers remain low till the end of September, it may be out of the woods.

Ravi 

Friday, February 5, 2021

Corona Daily 191: Story of the Taiwanese Chen


In the last week of October 2020, Chen’s flight from Hong Kong landed at Taiwan’s Taichung international airport. At immigration, he gave the address of his friend in Nantou where he would quarantine for the next 14 days. Chen knew how strict the quarantine regulations in Taiwan were. He was happy he would spend the two weeks in an empty apartment, rather than a hotel. The friend had promised to keep the fridge full. Chen’s suitcase was filled with lots of easy-to-cook meals. As agreed, he found the key to the apartment under the carpet outside. The fridge was full, a note with the wifi password was pasted on it. The hotplate worked well. Chen managed to switch on the TV and flick through the channels. Weather was great. The 14-day quarantine promised to be a comfortable experience. 

***** 

On the third night the doorbell rang. Chen got up from his bed and checked the time on the cellphone which was charging. It was 23.15. The simple and honest man that he was, he went to the door and opened it. That was a mistake. Two guys, with short hair, and arms toned up in Nantou gyms, came inside and shut the door behind them. They clarified they were not robbers, but debt collectors. They told Chen the amount he owed to them. He simply needed to pay it, and go back to bed in peace.

Chen told the gentlemen they were mistaken. This was not his apartment. He was simply staying here for the 14-day quarantine. Of course, the debt collectors didn’t believe him. They had heard many creative stories from the debtors before. The taller man hit Chen hard. The other held him, and carried him to the car that was waiting downstairs.

*****

The news reports from Taiwan don’t mention how the debt collectors managed to extract the large amount from Chen. One assumes they took him to an ATM, and made him withdraw cash to hand it over to them. It was only the following afternoon that in a bruised state, his body aching and head spinning he landed back in the apartment of his friend.

A few hours later he was surprised to hear the doorbell again. The same goons have come back, he thought. This time, he won’t open the door. “Police”, the loud voice said.

*****

Taiwan has some of the strictest quarantine laws in the world. You may remember the story where $4700 fine was slapped on a man for leaving his hotel room for eight seconds.      

The Taiwanese government uses what is called an “electronic fence” system. The system monitors all phone signals to see if anyone in quarantine takes their phone out of the address or turns it off. In theory, one can leave the apartment without the smartphone and try to beat the system. But the police are smarter. They call the phone twice every day at random times, and if it is not answered, visit the place. Stories have been heard of their calling people at odd hours.

When Chen was kidnapped, his phone was left home. When the police called it twice, and there was no answer, they decided to visit the address. On opening the door, they informed Chen he must pay a fine of Taiwanese $100,000 ($4700) for breaking the quarantine law. Chen tried to tell them he was abducted and assaulted; the police didn’t believe his story. They had heard many such stories before.

*****

This week, the Taiwanese Justice ministry said the investigations into the events that happened three months ago were complete. Chen’s explanation was confirmed, he had violated the quarantine regulations not by his own intentional or negligent behaviour. The fine of Taiwanese $ 100,000 was revoked. The police are now looking for the debt collectors.

Chen’s is the only case in Taiwan where the quarantine fine was cancelled.

Ravi 

Thursday, February 4, 2021

Corona Daily 192: Year of the Ox


If not for the pandemic, the world’s largest human migration would be taking place this month. Next Friday, on 12 February, begins the Chinese New Year (Year of the Ox, last year it was the Rat) known as such everywhere except China, where it is called Chunyun, the Spring Festival. During a forty-day festival period (28 January- 8 March) in a normal year 3 billion trips happen. It’s not only a family festival. People can visit relatives and friends uninvited. 

China has a large population of domestic migrants, 300 million. Mostly rural, the workers move to bigger cities to earn higher wages, leaving their families behind in the villages. Chunyun is the only time of the year when they return home. (Indians will recognize the migration phenomenon.) Chinese bureaucracy makes the migrant workers second-class citizens. They must register in the city of their job to access medical and social facilities. The registration system is strict making it difficult for people like factory workers to visit their families any other time of the year.

In 2020, the Year of the Rat had started on 25 January. Following the Wuhan outbreak, China had suddenly introduced travel restrictions before Chunyun. Some workers who had managed to reach their homes were stranded there for a few months. The Chinese State was unhappy that Beijing and Shanghai factories couldn’t run at their full capacity due to the stranded workers. Many suffered severe pay cuts.

Nearly half of the migrants were stranded in the town of their work. They have not seen their families since 2019. Some fathers haven’t seen their newly born children. They terribly fear not being able to go this year either.

*****

China fears Chunyun will be a superspreader event. This year is the 100th anniversary of the Communist Party of China, and the Party would have liked to arrange spectacular celebrations. Instead, China has come up with a strategy that tries to dissuade citizens, migrants and tourists alike, from travelling. The three-pronged plan is based on stick, carrot and emotional appeals.

*****

People visiting rural areas are subjected to a 14-day quarantine. They must produce a negative test and pay for it themselves. The health code on the app must be green. Some have to carry a ‘community acceptance certificate’ from the village leaders. Railway stations and airports have stepped up their precautions. The two-way quarantine and the tests may make the trip too expensive or impractical for many.

Normally, more than seven million Chinese tourists travel to Thailand, Japan, Vietnam, Singapore and Malaysia during Chunyun. Fortunately for China, all five countries have shut their borders this year.

*****

The list of incentives is long. Workers staying back will get gift baskets, shopping discounts. In Shanghai, officials will pay the phone and medical bills of those forgoing trips. Companies in Beijing will pay overtime, house maids will receive an extra $60. In Tianjin, the government will give subsidies to businesses for every worker who doesn’t leave for a holiday. Hangzhou, Zhejiang, Ningho and Quanzhou will issue “red packets”. Red packets were traditionally envelopes with money given to employees or children or surprise gifts. Now that happens digitally. WeChat is the most popular app in China on which those red packets can be transferred.

The city of Yiwu offers free admission to cultural places, free winter camps for children, and free subscription to online films.

*****

And there are campaigns to appeal to their sense of morality and patriotism.

“Mask or a ventilator? Choose one.” Reads an outdoor hoarding. “If you come home with the disease, you are unfilial.” Says another. “If you spread the disease to your parents, you are utterly devoid of conscience.” “Don’t leave Beijing unless necessary.”

Last year, with the sudden lockdown, the total number of trips (cars, trains, flights) was 1.5 billion. The Chinese administrators are practical and know their people well. Due to all persuasive and dissuasive measures, they forecast the total trips this year will be 1.7 billion instead of the 3 billion in a normal year.

*****

Ravi 

Wednesday, February 3, 2021

Corona Daily 193: Captain Tom Moore’s Remarkable Year


The flags above the British PM’s residence are lowered to half mast to pay tribute to Captain Tom Moore who at the age of 100 died of covid yesterday. Boris Johnson appealed to the British citizens to join the national clap for him at 6 pm today.

A year ago, very few people knew Captain Moore, even inside the UK. And yet he had the most remarkable year and died as a celebrity. 

*****

Tom Moore was born on 30 April 1920. He served as a British army officer in the second world war, with long stints in India and Burma. Once the world was at peace, he worked for a cement company. In his youth, he was an avid motorcycle racer. In 2018, following a fall, he was treated for a broken hip, broken rib, punctured lung and other serious injuries. He also had skin cancer. After a hip replacement and two knee replacements he used a walker.

In the spring of 2020, England was in bad shape. Hospitals were overwhelmed, morgues were full, Boris Johnson was in intensive care. Shutdowns and sickness were depressing and frightening. Against this background, a few days short of his 100th birthday, Captain Moore decided to start his walking marathon. He announced he will walk up and down his garden every day 100 times before his 100th birthday. Through this act, he wished to raise funds for the NHS. He wanted to thank NHS for his treatment as well as celebrate the health service in the time of crisis. Captain Moore was interviewed on BBC Breakfast, where he said his target was raising £1000. “Remember,” he said during the interview, “tomorrow is a good day, tomorrow you will maybe find everything will be much better than today.” This man with experience of one hundred years represented hope.

*****

What happened in the next few months is a fairytale.

Money started pouring in from all corners of the kingdom, some from abroad. In total 1.5 million people donated to raise £39 million ($ 54 million),

With the British singer Michael Ball, Captain Moore sang a song “You’ll never walk alone”. The single topped the UK music charts, and Captain Moore entered the Guinness World Records by being the oldest singer to top the charts.

On 30 April, his centenary, Royal mail had to allocate twenty employees to sort out the 150,000 greeting cards sent to him. Royal Mail postmarked each envelope with a special stamp: “Happy 100th birthday Captain Thomas Moore NHS fundraising hero 3oth April 2020”.

The Queen sends a congratulatory letter on the 100th birthday to every British citizen. She not only wrote to him, but promoted him to the rank of colonel. Then, on popular demand, on 17 July, Queen Elizabeth came out of isolation for the first time to make him Sir. During the TV interview, Captain Moore said he will not kneel before the queen. Because if he did, he will never get up again. The queen used her father’s long sword to touch his shoulders, a ritual to award the knighthood. Prince William called him ‘a one man fundraising machine.’

He had his sense of humour intact. In September, it was decided a biopic will be produced on his life. “I don’t know any actor who is 100 years old. But Michael Caine or Anthony Hopkins would do a wonderful job if they don’t mind to age up.” He said.

British Airways offered him free tickets to Barbados. He and his family enjoyed, what turned out to be his last vacation, in December 2020.

*****

Captain Moore showed how optimism, hope and energy can inspire the world. Age is no bar.

Ravi 

Tuesday, February 2, 2021

Corona Daily 194: Covid and Diabetes: A Two-Way Relationship?


We knew all this time that the coronavirus is more dangerous for those with diabetes. Now intriguingly it appears the relationship may be both ways. Covid-19 has caused diabetes newly in some patients. Some patients had their blood sugar higher when they were ill with covid. By the time they left the hospital, the level had returned to normal. Others went home with full-blown diabetes.

Beside attacking the lungs, Covid and in particularly long covid can cause several complications including blood clots, neurological disorders, kidney and heart damage. Now onset of diabetes may soon be added to this list. In Type 1 diabetes, (earlier called insulin-dependent or juvenile diabetes), pancreas doesn’t make insulin. This is usually diagnosed in children and younger people, and constitutes only 10% of the diabetic population. In Type 2 diabetes, very widespread, cells don’t respond normally to insulin, which is called insulin resistance. Pancreas can’t keep up trying to make more insulin to provoke cells to respond. Blood sugar rises causing all sorts of health problems. Covid may cause either type.

A year ago, in Wuhan, doctors had noticed elevated blood sugar in covid patients. Some patients who got diabetes after covid had obesity. Dexamethasone, a drug I mentioned yesterday, also causes elevated blood glucose levels. But in some cases, none of these factors were present. And some cases developed diabetes months after recovering from covid.

*****

John Kunkel, a 47-year-old American banker, was hospitalized in July. In a follow-up visit, his blood sugar level was dangerously high. He was readmitted and diagnosed with Type 2 diabetes. He has since had five emergency room visits and three hospital stays. He recently lost his job as a result. John is still puzzled. He had no pre-existing health issues before covid.

*****

An analysis published in the journal Diabetes, Obesity and Metabolism said 14.4% of people hospitalized with severe covid-19 developed diabetes. The data was collected from more than 3700 patients across eight different studies. At present researchers don’t know whether the cases are temporary or permanent.

To find out more, Francesco Rubino, a diabetes surgery professor at King’s college London and his colleagues launched a global registry of patients with covid related diabetes. God forbid, if you have had covid, and developed diabetes after that, please register here.

Some of the cases in the database provide an additional mystery. Usually, Type 1 patients may burn through their fat stores, Type 2 may experience severe dehydration and coma as the body pumps excess blood sugar into urine. The two types have different symptoms.

In some patients with Covid-19, the complications cross types. Scientists feel this may be a new hybrid form of diabetes. Professor Rubino is especially concerned about reports of diabetes diagnosed among patients who were asymptomatic or had only mild symptoms.

Diabetes has already reached alarming levels in many countries including India and the USA. When not managed, it can cause a number of complications including heart disease, stroke, blindness, kidney failure and nerve damage.

After the 2003 SARS pandemic, Chinese researchers had tracked 39 patients with no history of diabetes, who after being hospitalized with SARS had developed acute diabetes. For 33 patients, the diabetes was temporary. For four patients it lasted several months, and two patients had it after two years.

*****

If the suspicions about the bidirectional link between Covid-19 and diabetes turn out to be true, it is another reason everyone needs to continue taking care to avoid getting infected.

Ravi 

Monday, February 1, 2021

Corona Daily 195: Vaccines vs Drugs


In the last few months, we have been bombarded with news about Covid-19 vaccines; little has been said about Covid-19 drugs. As if protecting healthy people from Covid-19 is far more important than treating people ill with Covid-19. In the weekend edition, Carl Zimmer, a NYT columnist, discusses the reasons for this imbalance.

*****

The US Government invested $18.5 billion into vaccines, producing five effective vaccines at record speed. Investment in drugs was less than half at $8.2 billion, and lopsided. Too much money spent on few candidates such as monoclonal antibodies. Antivirals are drugs that can stop the disease early. But their trials could not happen for want of funds or enough patients.

Trump did much damage by being brand ambassador for hydroxychloroquine and chloroquine. All evidence pointed out these malaria drugs don’t work against Covid. Yet, there are still 179 clinical trials with 170,000 patients carried on.  US federal government spent a few million dollars infusing convalescent plasma into some 100,000 covid patients. In January, the trials showed it didn’t work for hospitalized patients.

Hydroxychloroquine story showed science and politics should not be mixed.

*****

Dexamethasone, a steroid drug, has been successful in reducing mortality of the severely ill patients.

Medicines need to be tested in large trials just as vaccines, with half the groups given placebos. Getting thousands of patients to take part in these trials is a logistical challenge. Patients generally visit hospitals for treatment, and not to be guinea pigs for unproven drugs. At the beginning of the pandemic the focus was on two drugs: Remdesivir, which stops viruses from replicating inside cells. This drug could shorten the recovery time, but had no effect on mortality. Monoclonal antibodies stop the virus from entering cells. Powerful, but only if given before patients are sick enough to be hospitalized.

Some researchers and doctors went for trial and error, on their own. Doctors at French psychiatric hospitals noticed that few patients became ill with covid as compared to their caretakers. It was speculated Chloropromazine, an antipsychotic drug, may be the reason. In the lab, it prevented the virus from multiplying. Enthusiastically, the doctors decided to start a trial, but the pandemic subsided at that time. Trials couldn’t happen in France or the USA because they ran out of patients.

Scientists believe the best time for a drug trial is at the beginning of the infection. But it is very hard to recruit trial volunteers at that stage. Participants who have just tested positive must be contacted, their consent obtained, and drugs given to them.

*****

Drug development sometimes takes ten to fifteen years. Dr Sumit Chanda, a Californian virologist, and his team screened a library of 13000 drugs, mixing each of them with cells and coronaviruses to see if infections could be stopped. A cheap leprosy pill Clofazimine fought of the virus in hamsters and other animals. Now Dr Chanda is hoping some pharma company or Joe Biden can sponsor a large clinical trial.

Pharma companies have started funding some trials of repurposed drugs. Plitidepsin, a 24-year-old cancer drug, was 27 times more potent than remdesivir at halting the coronavirus, in lab conditions. A large trial is planned in Spain.

Merck is running a trial for Molnupiravir, originally meant for influenza. It has been effective in curing ferrets of covid-19. In March, the results will show if it can cure human beings. This is a particularly interesting drug because for infected mice, it could treat all coronaviruses, including SARS and MERS.

“The efforts are unlikely to provide therapeutics in 2021,” said Dr Francis Collins, the head of the National Institutes of Health. “If there is Covid-24 or Covid-30 coming, we want to be prepared.”

Ravi 

Sunday, January 31, 2021

Corona Daily 196: The 2021 Russian Revolution


Today, tens of thousands of Russians flooded the streets to protest against the tyrant. They were not afraid of the virus. They were not afraid of Putin. Viruses come and go. But Putins of the world can rule for fifty years and ruin your entire life. Russians finally realized the despot was a much greater threat than covid. The Putin pandemic has damaged the nation for over two decades with no end in sight.

In some cities, temperatures were -40 or lower. Through snowstorms and treacherous ice, people walked for hours, braving hard-hitting batons and incapacitating tasers. In all, 4096 people and at least one dog were arrested by riot police picking up arbitrary targets. Historians noted Moscow and St Petersburg had not seen such a high number of cops and barriers since World War II. Young people said on live TV their desire for freedom was greater than their fear.

*****

Vladimir Putin has remained Soviet, with no software updates. He controls the State television completely. But the young generation watches internet, not TV. The number of people who watched the two-hour film about Putin’s palatial corruption is approaching the entire Russian population.

In his early days, Putin at least pretended to respect the law. He swapped presidency for four years with Medvedev to pretend constitutionality. Now he doesn’t bother any more. In the middle of the pandemic, he came out of his bunker and moved enough of his autocratic switches to extend his rule till 2036.

Russian people even forgave his attempts to kill former Russian spies in London, because he called them traitors. But poison an opponent who is so worthless that Putin has never pronounced his name in public? Earlier, political brutality was restricted to deny Navalny an electoral candidacy. Trying to kill the man with a super-lethal banned substance was already a tipping point.

*****

Should the world be interested in what is Russia’s domestic affair? Yes. Russia has more nuclear weapons than any other nation. Putin now has only anti-Western paranoia to justify his rule to the gullible Russians. Trump was a madman with his finger on the nuclear button. However, America has enough checks and balances. The American people and media are the most powerful check on any dictator. Russia has no checks and balances. The parliament, judiciary, army, state media are all in Putin’s pocket. A desperate Putin is far more dangerous for the west than a desperate Trump.

Only people can bring Putin down, and their revolution has started this week.

*****

Some Russians say they don’t see Navalny as a president. Of course, when you have a dictator in power for 22 years, it is difficult to imagine anybody else as a president. Alexey Navalny, with his extraordinary courage and organizational leadership has the potential, but that is not the point. It is about bringing democracy to this largest nation with millions of simple, good- natured Russians. Navalny is an anti-corruption campaigner.

Protesting Russians, particularly the young ones, showed freedom is more important for them. Even if Navalny becomes a president, removing corruption would be difficult. Corruption is a function of poverty and culture. America is also a corrupt country; the scale and method may be different.

Young Russians understand that freedom of spirit and fearlessness of mind are the core necessities of civilized life. That is why Navalny risked entering Russian jail and a probable assassination, rather than a comfortable life in exile.

*****

Can Putin become even more ruthless, attempt a Russian Tiananmen Square-type suppression and crush the protests? It’s increasingly difficult. Because he shares his loot with his oligarch friends. Those who must kill ordinary Russians at the dictator’s orders are not rich. They are uniformed and armed, but poor. The next step is for them to join the protesters. In a city called Chita, cops refused to do their duty, allowing the protestors to protest.

The best way out for Putin is to negotiate an amnesty and life-long immunity. He may not be able to spend the rest of his life in his palace, but surely, he can settle in a place more livable than a Siberian colony.

Ravi


Saturday, January 30, 2021

Corona Daily 197: Why a Needle?


The world plans to inject needles into a few billion upper arm muscles to save itself from the coronavirus. Why needles? Why can’t the vaccine be given orally like medicine, or glued on like a nicotine patch? In my childhood, we were warned that a dog bite would require fourteen abdominal injections. (The reason why many of my friends and I are not dog lovers). In fact, there is a word – trypanophobia meaning fear of needles. It is estimated that up to 10% of people may be so afraid of needles as to refuse to take injections.

*****

Hypodermic literally means under the skin. Hypodermic needles have a long history.

Christopher Wren, a British architect (note: not a doctor), used a cut-down technique to intravenously inject dogs in 1656. By 1660, the experiment was tried on human beings. The experiments proved fatal for the recipients. There was no knowledge about the required dosage, or sterilizing utensils. The method was abandoned for almost 200 years after that. In the nineteenth century, metal syringes were used. Sherlock Holmes used them to self-administer cocaine. In 1946, an all-glass syringe was developed, and in 1956, a disposable syringe. Plastic syringes with metal needles became the norm. After AIDS, disposable needles became a necessity.

*****

There are a few successful oral vaccines such as the polio vaccine. Easy to administer, their acceptance rate is higher. They can’t accidentally injure someone with needles. Storage and distribution are not a problem, no cold chain is required. Imagine how efficient the covid oral vaccine distribution would have been. A sweet pill couriered to you, no freezers, no queues, no nurses. They are also environment friendly. Every year nearly half a billion needles are thrown in landfills; in 2021, this number will exceed a billion. Annually, 75 million of the discarded needles are infected with blood-borne diseases.

*****

Our bodies have several natural barriers: hair in the nose, wax in the ears, acid in our bellies. Destructive chemicals and cells in our immune system are for our protection. Vaccinations need to bypass these barriers, while keeping the vaccines’ delicate components intact. Pfizer and Moderna vaccines contain RNA, which is so sensitive that vials need to be deep frozen, Pfizer in temperatures below winters in Antarctica. An injection into the upper arm ensures our cells can respond to the RNA before that genetic material degrades.

Fatty areas don’t have enough blood supply. Traditionally the buttocks were thought to be the right location for inoculation. (Imagine presidents and prime ministers taking down their pants on TV for the shots). But layers of fat don’t contain the appropriate cells to initiate an immune response. Antigens may also become defunct if they remain in fat for long. Research has indicated thicker skinfolds evoke a lowered antibody response to vaccines. Scientists suggest the length and diameter of the needle should be customized to each patient. That may be the most impractical suggestion for the covid vaccines.

*****

Oral vaccines are challenging because of the highly acidic GI (gastro-intestinal) environment in the stomach. The enzymes in the GI tract can degrade the fragile antigenic proteins before they can induce an immune response. Which means a higher dose of antigen is needed for an immune response as compared to the shots in the arm. Larger doses increase the risk of higher tolerance to the dose rather than protection. Oral vaccines are a real challenge, particularly for a new epidemic like covid.

The University of Sydney tried to use a liquid jet injector. Other attempts include a Band-Aid like patch made of 400 microneedles, a nasal spray vaccine and an oral tablet. None of them seem likely to succeed before the end of the pandemic.

*****

The hypodermic needle, manufactured in billions, may be the greatest medical device invented. Whether we like it or not, it continues to be mankind’s main weapon to save lives.

Ravi                                                                                 

Friday, January 29, 2021

Corona Daily 198: The Paranoid Grandpa in the Bunker


Try to go to Google images and search for Vladimir Putin in a mask. Can’t find it?  Because he has never worn one. No doubt a mask would dilute Putin’s manliness. Trump, Bolsonaro, Lukashenka, Johnson and several other alpha males tried not to wear masks and duly got infected. Putin has managed to stay corona-free. How? By going into isolation since last March. Except a single state television reporter who interviewed him in August, no journalist has met him face-to-face.

*****

Inevitably, Putin had to appear outdoors for the May day parade which happened on 24 June. The World War II veterans whom he would meet had to spend two weeks in quarantine at an isolated health resort. ‘We were bored, sat around and breathed the air’, said Lev Litvinov, a 100-year-old veteran.

Dmitry Peskov is Putin’s spokesman, whose job is to lie with a straight face. ‘This was about the veterans’ health; it was to protect them.’ said Peskov.

Since March, though, anyone wanting to meet Putin must first quarantine for two weeks. Putin has several residences, mainly Novo-Ogaryovo, the presidential estate outside Moscow, and Bocharov Ruchey, a presidential retreat in the Black sea city of Sochi. Since March, two large health resorts in Sochi have been exclusively reserved for people to quarantine for two weeks before meeting Putin.

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Moscow is the nerve center of Russia, and Putin is expected to be there to govern the country in these difficult times. But Putin loves to be in Sochi. Weather is much better, atmosphere relaxed, and in the unlikely event of a coup, he will be away from danger.

How to have your cake and eat it too? Well, Putin has created a twin conference room in Sochi identical to the one in Novo-Ogaryovo residence. The beige chairs, wallpapers, telephones, a Dell computer screen, Russian flags. In both places, there are microphones on Putin’s desk. Whenever he has videoconferences, Moscow people are happy to feel their president’s proximity. In reality, he is in Sochi.

Peskov said the president’s work spaces outside Moscow and in Sochi are not identical. The president has no identical offices. When the investigative reporters pointed out that the presidential planes are located in Sochi, Peskov said Presidential planes can be based outside Moscow. When he was probed about the flight records for the presidential plane flying from St Petersburg (which Putin had visited) to Sochi, Peskov said the flight movements were classified information which he couldn’t discuss.

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Three disinfection tunnels have been installed, one for Kremlin, and two for Putin’s two residences. These are Russian-made tunnels that look like the giant scanning machines at the airport. Walking through the tunnel feels and smells like passing through a cloud of pool-water mist.

To meet Putin even for five minutes, a person must first quarantine in the prescribed hotel for two weeks, and then walk through the disinfection tunnel.

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Putin’s paranoia is not pandemic-born, it has just become worse. A couple of years ago, at the G20 summit in Japan, while everyone else drank from wine glasses, Putin used the mug he was carrying from Russia.

“This is because he is constantly drinking tea from that Thermos.” Said Peskov when asked to explain this strange episode.

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Russia recently admitted the real covid toll is three times the official statistics, which would bring Russia to a third place in terms of covid deaths. The deaths are suppressed by a Russian regulation that puts covid as the cause of death only where an autopsy confirms presence of the virus. Putin knows the true picture. He also knows how reliable the Russian vaccine, Sputnik, is. Putin has not taken the vaccine, nor has he shown any inclination to. His age group (60+) is eligible since 26 December.

“As to whether he will take the vaccine, and if he does whether he will take it in front of the cameras, you should ask the president.” Said Peskov.

But then, to ask, a journalist may need to quarantine for two weeks and then go through the disinfection tunnel.

Ravi